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Vernonia fasciculata (Common Ironweed)

Vernonia fasciculata (Common Ironweed)

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Regular price $ 5.33
Regular price Sale price $ 5.33
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$30 minimum per species for seed.

Each species requires a minimum of $30 of seed to proceed with checkout.

Pure Live Seed

Seed is provided in Pure Live Seed (PLS) unless otherwise stated.

Pure Live Seed (PLS) refers to the percentage of a seed lot that consists of the desired species and is viable (capable of germination).   

Here's why PLS is crucial for native seeds:

  • Accurate Planting:
    • PLS helps determine the actual number of viable seeds in a given weight or volume of seed.   
    • This ensures you plant the correct amount of seed to achieve the desired density and success rate.   
  • Cost-Effectiveness:
    • By knowing the PLS, you can avoid overspending on seed that may not germinate.
    • This is especially important for native seeds, which can be more expensive than some cultivated varieties.
  • Weed Control:
    • PLS helps minimize the presence of weed seeds within the seed lot.
    • This reduces competition for resources and ensures the successful establishment of the desired native plants.
  • Ecological Restoration:
    • Using high-quality native seeds with a high PLS is essential for successful ecological restoration projects.
    • It helps to re-establish diverse and resilient plant communities that support local wildlife.

Weight Conversions lbs. to oz.

0.01 pounds = 0.16 ounces

  • 0.1 pounds = 1.6 ounces
  • 0.25 pounds  = 4 ounces
  • 0.5 pounds = 8 ounces
  • 0.75 pounds = 12 ounces
  • 1.00 pounds = 16 ounces

Vernonia fasciculata (Common Ironweed) is a keystone Midwest native species highly prized by restoration ecologists, landscape architects, and home gardeners. Known for its strong ecological resilience, exceptional wildlife support, and a floristic C-Value of 4, this hardy perennial thrives in full sun across mesic to wet (wet-mesic prairies & floodplain borders) soils. Whether you are creating a dedicated pollinator garden, stabilizing soil on slopes, or restoring remnant prairie and woodland acreage, Natural Communities supplies this species in dependable formats—including deep-cell live plugs, bare-root stock, individual seed packets, and bulk Pure Live Seed (PLS) by weight.

Comprehensive Ecological & Growth Specifications

Botanical Name Vernonia fasciculata
Alternate Common Names Common Ironweed, Vernonia fasciculata
Plant Family Asteraceae (Aster / Ironweed Family)
Regional Native Status Native
Native Range (States) AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WI, WV
Midwest & Regional County Distribution IL: Cook, DuPage, Kane, Lake, McHenry, Will, Kendall, Boone, Winnebago, DeKalb, LaSalle, Grundy; WI: Kenosha, Racine, Walworth, Milwaukee, Waukesha, Dane, Rock, Jefferson; IN: Lake, Porter, LaPorte
Primary Native Habitats Wet Prairies, Sedge Meadows, Floodplain Terraces, Swales
USDA Hardiness Zones Zone 3 - 8
Sunlight Exposure Full Sun
Soil Moisture Range Mesic to Wet (Wet-Mesic Prairies & Floodplain Borders)
Soil pH Range 5.5 - 7.5
Height at Maturity 3' - 6'
Spread & Growth Habit Clumping / Well-Mannered (Non-aggressive)
Root Architecture & Depth Dense Fibrous / Rhizomatous Root Network (14+ Depth)
Deer & Wildlife Resistance High to Moderate
Drought Tolerance Medium
Salt Tolerance Low to Moderate
Larval Host Status Ironweed Borer Moth (Papaipema cerussata) & Parthenice Tiger Moth
Specialist Insects & Wildlife Support Melissodes denticulatus (Specialist Ironweed Long-Horned Bee), Melissodes boltoniae (Long-Horned Bee), Megachile pugnata (Leafcutter Bee), Swallowtail Butterflies & Long-Tongued Native Bees
Ecological Function Stormwater Infiltration & Bioswale Resilience, Wetland Mitigation & Bank Stabilization, Keystone Nectar Hub for Native Bumblebees, Aquatic & Sedge Meadow Buffer Support
Coefficient of Conservatism (C-Value) 4
Germination Code / Stratification C(30)
ACOE Wetland Indicator Status FACW
Recommended Plug Spacing 12 to 18 on-center
Plant Associates Carex pellita (Broad-leaved Woolly Sedge), Pycnanthemum virginianum (Common Mountain Mint), Andropogon gerardii (Big Bluestem), Asclepias incarnata (Rose Milkweed / Swamp Milkweed), Eutrochium maculatum (Spotted Joe-Pye Weed)
Seed Packet Coverage Covers 100 to 250 sq. ft.
Seeds Per Pound 400000.0
Broadcast Seeding Rate (PLS) 1.50 – 3.00 lbs/acre PLS
Toxicity & Pet Safety Non-toxic / Safe for native wildlife & domestic pets

Botanical Profile & Ecological Characteristics

Vernonia fasciculata plays a critical role in establishing healthy, diverse native plant communities throughout the Midwest. Adapted over thousands of years to regional climate patterns, seasonal temperature extremes, and variable moisture conditions, it develops a resilient root architecture (dense fibrous / rhizomatous root network (14"+ depth)) that builds soil organic matter, improves water infiltration, and resists environmental stress.

Vernonia fasciculata (Common Ironweed) is a tall native perennial that has distinctive intensely deep purple flowers.  It can be a taller plant of the prairie, but if inter-planted among other tall plants it can provide a nice pop in mid-late summer.

  • Sun Exposure Prairie/Savanna
  • Soil Conditions Wet-Mesic- Mesic
  • Height 6'-8'
  • Flower Color Purple
  • Flower Time July, August, September

Faunal Associations & Specialist Wildlife Support

As a vital resource in native ecosystems, Vernonia fasciculata provides essential sustenance across multiple trophic levels:

  • Larval Host & Pollinator Support: Ironweed Borer Moth (Papaipema cerussata) & Parthenice Tiger Moth.
  • Specialist Floral Visitors: Melissodes denticulatus (Specialist Ironweed Long-Horned Bee), Melissodes boltoniae (Long-Horned Bee), Megachile pugnata (Leafcutter Bee), Swallowtail Butterflies & Long-Tongued Native Bees.
  • Avian & Insect Forage: Flowers provide dense, accessible nectar and pollen during the peak growing season, followed by nutritious seed heads that feed native songbirds and overwintering wildlife.

Native Plant Associates & Community Ecology

In authentic Midwestern habitats—such as Wet Prairies, Sedge Meadows, Floodplain Terraces, Swales—Vernonia fasciculata naturally co-occurs and establishes balanced, biodiverse communities alongside:

Landscape Applications & Restoration Guidelines

Vernonia fasciculata is well-suited for home landscaping borders, rain gardens, naturalized meadows, and conservation acreage alike.

  • Plug Spacing: Space live plugs approximately 12" to 18" on-center for optimal crown development and contiguous ground coverage.
  • Broadcast Seeding Rate: 1.50 – 3.00 lbs/acre PLS (when included in diverse prairie seed mixes).
  • Regional Provenance: Sourced and propagated from regionally adapted Midwest ecotypes for maximum ecological fitness and cold hardiness.

Frequently Asked Questions (FAQ)

What are the ideal growing conditions for Common Ironweed?
Vernonia fasciculata performs best in full sun with mesic to wet (wet-mesic prairies & floodplain borders) conditions. It thrives in authentic regional soil types ranging from sandy loam to well-drained clay loams.

How do I germinate and establish Common Ironweed from seed?
Seed of Vernonia fasciculata has a germination code of C(30). For best results, sow seed in late fall/winter for natural outdoor freeze-thaw stratification, or cold-moist stratify in refrigeration for 30 to 60 days before spring indoor propagation.

Is Common Ironweed deer and herbivore resistant?
Yes. Native plants adapted to Midwestern habitats naturally produce protective secondary compounds and fibrous textures that make them highly resistant to deer, rabbits, and other grazing herbivores.

When should I expect Common Ironweed to emerge and bloom?
Established plants break dormancy in spring as soil temperatures warm, developing vigorous foliage before blooming in their seasonal window to provide vital nectar when native pollinators need it most.

Plant Shipping & Care

We want to ensure that our customers get what they want, a native backyard oasis. To do that, we need to follow a few simple guidelines and give you some information and pointers to make sure you get your plants delivered in a healthy state.

As a reminder, you will receive an email to confirm your pickup or shipping window just before the plants are ready. See Order Fulfillment below for seasonal fulfillment windows.

 

Choices to Receive Your Plants & Accessories

  • Retail - We only offer shipping & shipping is calculated at check out*
    • We do not offer retail pick up
  • Wholesale - Delivery is customized based on order size and location
  • Wholesale - Pickup is free

 

Order Fulfilment - When Your Plants or Other Items Will Be Ready

We take orders all year long and seed is shipped all year, but we only provide the plants to you in certain fulfillment windows to ensure healthy plants.

Wholesale Orders

  • Shipped or are Ready For Pick Up As Requested.

 

Retail & Website Orders

  • Seed Typically Ships Out Within One Week Of Order All Year Long
  • Typically, single species flats ship when ready, sometimes as soon as early to mid-April (depends on weather) through early-October.
  • Mixed species kits are batched and shipped as indicated on the product page.
  • If a plant order is placed while outside of the plant fulfillment window your plants will be reserved through your payment, however, the order will not be fulfilled and shipped until the following spring. We don't want to provide you plants when they won't be happy during the cold winter months. 
  • Early in the spring and later in the fall certain species may be dormant or partially dormant with brown leaves, however they will return to grow healthy next growing season.
  • Your order may arrive in several different shipments.
  • If certain plants within an order will not be available until a later date, we may choose to hold the full order until all are ready.  In certain circumstances, we may choose to send them in two separate shipments 
  • Fulfillment is always dependent upon plant availability.  We try our best but sometimes plants do not overwinter well and perish.  If a plant is on back order you will receive an email indicating the estimated shipping date.  If we can not provide the plant we will first notify you and give you an option of substitution or a refund of that individual species.
  • Plants are typically only packaged and shipped on Mondays to ensure they do not sit in the harsh delivery facility for extended periods of time over the weekend. You will receive a confirmation email once your delivery has been shipped and to estimate your delivery date.
  • Apparel & accessories are ready typically within one to two weeks. See product page for holiday shipping.

Where We Ship

 

 

        What to Expect When Receiving Your Delivery

        • Your plants will be packaged with the utmost care
        • We will need to cut back certain plants prior to shipping. This seems counter-intuitive, however, the fewer leaves the less water the plants can lose during shipping, resulting in healthier plants for you. This also enables the plants to fit within the protective packaging and shipped safely.

         

           Shipments

          • Larger plant shipments will look similar to the picture below with a tray of your plants and a cardboard box to protect them during shipping.

           

           

          What to Do With Your Plants After  Receiving Your Delivery

          • Unpack your order IMMEDIATELY
          • Inspect for damage and report any issues immediately to Natives@NaturalCommunities.net
          • Water your plants
          • Install your plants as quickly as possible and water the entire garden area thoroughly
          • If you cannot install your plants immediately
            • Some plants may not be in a container, put them into some kind of a container such as a paper cup with loose soil until installation
            • Make sure each plant is receiving the appropriate amount of light.
            • Continue to water daily each morning and possibly again in the afternoon
            • No additional fertilizer is needed
          How to install native plugs

          Seed Shipping & Care

          There is a minimum order requirement of $30 for each seed species. Seed ships all year and typically ships within a week of an order being placed.

          We have attempted to put together some basic information regarding native seed installation, establishment, and maintenance.  We hope you find it helpful.  If you need further assistance on native seed establishment, please schedule a free consolation call here.

          Consultation Services

          Ecosystem Restoration Considerations

          Native Seed Establishment Best Management Practices

          Native Seed Stratification Best Management Practices

          View full details

          Solving a Site Problem? Get Expert Advice + Get Store Credit

          Whether you're fighting severe erosion, replacing invasive species, designing a pollinator haven, or seeding large acreage, choosing the wrong species wastes time and money. Talk 1-on-1 with a restoration ecologist to map out the exact species, plug counts, or seed mixes for your soil and goals. Book a consultation and get all or a portion credited directly back to your order.

          Questions & Answers

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